Typewriting-machine



A. W. SMITH.

TYPEWRITING MACHINE.

APPLICATION mu) MAY 3, 19.19.

INVENTUR 0 fufl 1.14.

Patented Aug. 23, 1921.

l 1 t. I L 5 w 5. E w d 8 a W w/% HIS ATTURNEY UNITED, STATES PATENT OFFICE.

AMHUR W. SMITH, OF NEW YORK, N. Y., ASSIGNOR TO REMINGTON TYPE- WBITER COMPANY, OF ILION, NEW YORK, A CORPORATION OF NEW YORK.

TYPEWRITING-MACHINE.

Specification of Letters Patent.

Patented Aug. 23, 1921.

Application filed May 3, 1919. Serial No. 294,559.

T 0 all whom-it may concern: 7

Be it known that I, ARTHUR W. SMITH, citizen of the United States, and resident of the borough of Manhattan, city of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Typewriting-Machines, of which the following is a specification.

My inventionrelates to tabulator mechanisms for typewriting and like machines.

The main objects of myinvention, generally stated, are to provide comparatively simple means by which the tabulator mechanism may be easily assembled and adjusted, and by which parts thereof may be readily detached when desired.

Heretofore in tabulator mechanisms it has been common to provide flat spring clips for detachably retaining connecting links in pivotal connection with associated parts, and to detach the link from said parts preliminary to a detachment and removal of the latter from the machine. In connecting and disconnecting such links, it has been customary to employ a screw driver, or some such tool, to bend each retaining spring clip to one side and holdit in such position during the connection or disconnection of the associated link with its companion part. This required considerable time both in assembling and disassembling, as well as in adjusting the parts; and the exercise of great care was necessary to avoid damaging the spring clips, which in being flexed to releas ing positions were often broken, or so bent as to remain permanently set and hence'rendered useless or ineffective, necessitating replacement.

The objects of my invention, generally stated, are to provide a construction which overcomes these difiiculties and objections,

avoids'entirely the use of retaining spring clips, or any other form of connection which requires a preliminary detachment of the links before removal of parts connected thereto can be effected, and in which an individual detachment and reconnection of each link may be effected while the parts remain in the machine.

To the above and otherends which will hereinafter appear, my invention consists in the features of construction, arrangements of ,parts and combinations of devices set forth in the following description and partticularly pointed out in the appended claims.

In the drawing,

Figure 1. is a full-sized, fragmentary vertical fore and aft sectional view of a No. 10 Remington machine with my invention embodied therein.

Fig. 2 is a fragmentary rear elevation of some of the parts represented in Fig. 1.

Fig. 3 is a detail plan view, partly in section, of one of the links and the parts to which itis connected.

My invention may be regarded as an improvement on the construction disclosed in the patent to Oscar WVoodward No. 927,626, dated July 13, 1909 and on the constructions disclosed in the patents to George A. Seib Nos. 1,132,286 and 1,273,545, dated respectively March 16, 1915 and July 23, 1918. As shown herein, my invention is embodied in a column selecting tabulator of the same general character as disclosed in said patents to George A. Seib.

The frame of the machine comprises a base 1, corner posts 2 and a top plate 3. The tabulator frame is designated as a whole by the reference numeral 1. This frame is detaclr ably secured to the frame of the machine by any suitable means, such as by screws 5 which connect the lower end of the frame 4 to the base of the machine,'and by screws 6 which connect the upper portion of said frame d to the top plate. A series of tabulator-stop actuating members or levers 7 are pivoted to the tabulator frame at Sand are mounted and guided, and control the tabulator stops (not shown) in the usual or any desired manner. In the present instance it may be assumed that the tabulator stops are like those disclosed in the above mentioned Seib Patent No. 1,132,286, and are controlled by the levers 7 in a like manner. A coiled expansion spring 9 is seated at one end against a shoulder 10 in the tabulator frame and bears at its opposite end against a shoulder 11 formed on the associated lever 7, it being understood that one of these springs is pro vided for each lever 7. A forwardly extending arm 12 on each member 7 is detachably connected in a manner to be hereinafter described, toa connecting link, designated as a whole by the reference numeral 13. I prefer to make this a two-part extensible link comprising a rod 14. and a socket 15. The part 14 is threaded at one end at 14" to enter a threaded hole in the socket 15, which socket is pivoted at 16 to its associated key controlled member '17. The rear end portion of each link is flattened at 18 and formed with a bearing slot 19 which extends longitudinally ofthe link and is open at the rear end thereof, thus forming a fork. Each slot 19 receives the stem of a headed pin 20 which projects laterally from its associated lever 7. The members 17, as shown in the present instance, are pivoted on a rod 21 secured at its ends to the base of the machine, and each member 17 is in the nature of an angular lever controlled by a tabulator key 22 in the usual manner.

When connection is once effected between the rear end of each link or rod 14 and its associated member or lever 7 such connection is maintained by the power exerted by the companion spring 9 on the assoclated lever 7, the spring tending to force the lower end of the lever 7 forward and hold the pin 20 seated at the bottom of its slot 19 and also to return all of the parts to normal position when the finger key 22 is released after depression. Should it be desired, for any reason, to effect a disconnection between a given lever 7 and its link 13, this may be done by simply moving the lower end of the associated lever 7 rearwardly against the power of the spring 9, as indicated in dotted lines in Fi 1. This movement of the lever 7 in the dlrection of its operating movement and independently of its link 13, operates to withdraw the pin 20 from the slot 19 and thus a disconnection of the lever 7 from the rear end of the link is automatically effected. It will be understood that in connecting the links 13 to the levers 7 the lower end of each lever 7 is moved rearwardly as explained above, and its link is raised to bring the open mouth of the slot 19 therein opposite its associated pin 20, whereupon the mechanic frees the lever 7 and the reaction of its spring 9 causes the parts to be automatically connected.

The tabulator frame may be detached (after removing or backing up the screws preliminary releasing of the rear ends of the links from the levers. In this movement of the frame the studs 20 slide out of the openended slots 19 and the rear ends of all the links fall simultaneously upon the table or bench, as illustrated in dotted lines at Fig. 1.

An adjustment in the length of each link 13 is effected, when its rear end is detached,

by turning the part 14 to screw its threaded end in or out within the socket part 15. By

' this adjustment the proper extent of forwardthrow of each stop controlled by a member 7 may be determined. It will be 'From the foregoing description it will be seen that I have provided a simple, cheap and efficient construction which enables the parts to be readily assembled, adjusted and detached when desired; thateachof the intermediate links 13 is connected to and supported at one end by one of the two members (7 and 17) which it operatively connects, and is detachably connected to and supported at the other end by the other of said members; that each open-ended slot 19 is adapted to receive one of said members and form an interlocking detachable connection therewith; that such connection prevents a relative lateral movement between the parts thus connected but enables a disconnection to be effected by a mere relative movement of the parts away from one another in the direction of their operating movements, and against the power of the associated returning spring 9, and lengthwise of the link 13, and that no preliminary detachment of the links is necessary in order to detach and remove as a single unit the tabulator frame and the parts carried thereby. It will be seen, moreover,

that an individual detachment of each link machine it will be understood that the invention is not limited to its use in such machine.

What I claim as new and desire to secure by Letters Patent, is

1. In tabulator mechanism ing and like machines, the combination of a tabulator stop actuating member, a keycontrolled member, and a link connected :to and supported at one end by one of said members and having a detachable connection with the other of said members and by which the link is supported at the otherfend,'said detachable connection being formed by an open-ended slot in one part adapted to receive a coacting portion on another of the two parts to be connected by said detachable connection.

2. In tabulator mechanism for typewriting and like machines, the combination of a for typewrittabulator stop actuating-member, a key (1011- trolled member, and an extensible link pivoted to and supported at one end by one of said members and having a detachable connection with the other of said members, the construction of the detachable connection being such. as to support the other endof the tween the parts and against the power of link and to aiford a detachment of the link from one of said members by a mere relative movement between one of said members and the link lengthwise of the latter.

3. In tabulator mechanism for typewriting and like machines, the combination of a tabulator stop actuating-member, a sprlng for returning said member to normal position, a key controlled member, and an extensible link connected to and supported at one end by one of said members and at the other end detachably connected to and supported by the other of said members, the detachable end of the link being maintained in connection by the power of said returning spring, and the detachment of the link being effectible by a mere relative movement besaid spring.

4. In tabulator mechanism for typewriting and like machines, the combination of a tabulator stop actuating member, a spring for returning said member to normal position, a key controlled member, and an extensible link connected to and supported at one end by one of said members and at the other end detachably connected to and supported by the other of said members by means that form an interlocking engagement maintained by the reaction of said spring, the parts being separable from such engagement by a mere relative movement between them against the force of said spring.

5. In tabulator mechanism for typewriting and like machines, the combination of a tabulator stop actuating member, a spring for returning said member to normal position, a key controlled member, and an'extensible link connected to and supported at one end by one of said members and at the other end detachably connected to and supported by the other of said members by a pin and open ended slot connection maintained united by the reaction of said spring and separated by a relative movement of the parts against the power of said spring.

6. In tabulator mechanism for typewriting and like machines, the combination of a detachable tabulator frame, a series of stopactuating members carried thereby and detachable therewith, a series of key controlled members, intermediate actuating links between and connected to and supported by said key-controlled and stop-actuating members; springs co-acting with said stop actuating members to return the parts to normal position; and means for detachably connecting one set of the ends of all of said links to one set of said members, said connecting means comprising parts detachable by a relative sliding movement whereby the tabulator frame may be detached without a preliminary detachment of the links.

7 In tabulating mechanism for typewriting and like machines, the combination of a series of tabulator-stop actuating members, a series of key controlled members, a series of links each connected to and supported at one end by one of said members and connected to and supported at its other end by a member of the other series, and means which enable each link to be individually detached from and reconnected with one of the said members by which it is supported while the parts remain in the machine and without first detaching, disconnecting or removing an other part of the machine.

i ned at theborough of Manhattan, city of ew York, in the county of New York and State of New York this 30th day of April, A. D. 1919.

ARTHUR W. SMITH.

Witnesses:

CHARLES E. SMITH, E. M. WELLS. 

